Home / 1,251,392,831.43-1,728,355,363.55-824,140,039.86

Finding the Fourth Proportional to 1,251,392,831.43, 1,728,355,363.55 and 824,140,039.86

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Solution

The fourth proportional to 1,251,392,831.43, 1,728,355,363.55 and 824,140,039.86 is: 1,138,257,166.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,392,831.43 : 1,728,355,363.55 = 824,140,039.86 : x
  2. Step 2: Convert to fraction form
    1,251,392,831.43/1,728,355,363.55 = 824,140,039.86/x
  3. Step 3: Cross multiply
    1,251,392,831.43x = 1,728,355,363.55 × 824,140,039.86
  4. Step 4: Simplify right side
    1,251,392,831.43x = 1,424,406,858,204,221,184
  5. Step 5: Solve for x
    x = 1,424,406,858,204,221,184/1,251,392,831.43
  6. Step 6: Final answer
    x = 1,138,257,166.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.